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प्रश्न
State Fleming's left-hand rule. Explain it with the help of labelled diagrams.
उत्तर
According to Fleming's left-hand rule, when thumb, forefinger and central finger are kept mutually perpendicular:
(a) Thumb represents force.
(b) Forefinger represents magnetic field.
(c) Central finger represents current.
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संबंधित प्रश्न
State whether the following statement is true or false
The field at the centre of a long circular coil carrying current will be parallel straight lines.
State the form of magnetic field lines around a straight current-carrying conductor.
What is the shape of field lines inside a current-carrying solenoid? What does the pattern of field lines inside a current-carrying solenoid indicate?
When is the force experienced by a current-carrying conductor placed in a magnetic field largest?
In a statement of Fleming's left-hand rule, what do the following represent?
(a) direction of centre finger.
(b) direction of forefinger.
(c) direction of thumb.
The force exerted on a current-carrying wire placed in a magnetic field is zero when the angle between the wire and the direction of magnetic field is:
45°
60°
90°
180°
State whether a magnetic field is associated or not around a moving charge.
The north pole of Earth’s magnet is in the ____________.
A current-carrying conductor is held in an exactly vertical direction. In order to produce a clockwise magnetic field around the conductor, the current should be passed in the conductor:
A current flows in a wire running between the S and N poles of a magnet lying horizontally as shown in the figure below:
The force on the wire due to the magnet is directed ____________.
